10k, http://www.rc-monster.com/forum/showthread.php?t=7588
speed isn't 100mph, but i believe could be w/ a big enough setup in there.. but it does do 50mph fairly easily w/ a neu 1512. but spins the tires up to about 25mph on a launch. when i ran it, it ran excelent, but just wasn't geared low enough for 80-90mph speed runs. still avail btw, pm me if you'd like.